<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="名称" prop="bookName">
        <el-input
          v-model="queryParams.bookName"
          placeholder="请输入名称"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>

      <el-form-item label="作者" prop="author">
        <el-input
          v-model="queryParams.author"
          placeholder="请输入作者"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>

      <el-form-item label="下架状态" prop="unshelve">
        <el-select v-model="queryParams.unshelve" placeholder="下架状态" clearable>
          <el-option
            v-for="dict in dict.type.take_down_state"
            :key="dict.value"
            :label="dict.label"
            :value="dict.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>
    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['book:info:add']"
        >新增
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['book:info:edit']"
        >修改
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['book:info:remove']"
        >删除
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="info"
          plain
          icon="el-icon-upload2"
          size="mini"
          @click="handleImport"
          v-hasPermi="['book:info:import']"
        >导入</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['book:info:export']"
        >导出
        </el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="infoList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center"/>
      <el-table-column label="名称" align="left" prop="bookName"/>
      <el-table-column label="类型" align="center" prop="typeName" width="80"/>
      <el-table-column label="库存" align="center" prop="bookInventory" width="80"/>
      <el-table-column label="作者" align="center" prop="author" width="120"/>
      <el-table-column label="租金/日" align="center" prop="rent" width="80">
        <template slot-scope="scope">
          <span>{{scope.row.rent}}元</span>
        </template>
      </el-table-column>
      <el-table-column label="下架状态" align="center" prop="unshelve" width="100">
        <template slot-scope="scope">
          <dict-tag :options="dict.type.take_down_state" :value="scope.row.unshelve"/>
        </template>
      </el-table-column>
      <el-table-column label="出版社" align="left" prop="press"/>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width" width="190">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['book:info:edit']"
          >修改
          </el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['book:info:remove']"
          >删除
          </el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-close"
            @click="handleDown(scope.row)"
            v-hasPermi="['book:info:takeDown']"
            v-if="scope.row.unshelve===0"
          >下架
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改图书信息对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="600px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="120px">
        <el-form-item label="图书名称" prop="bookName">
          <el-input v-model="form.bookName" placeholder="请输入名称"/>
        </el-form-item>
        <el-form-item label="图书类型" prop="bookType">
          <el-select v-model="form.bookType" filterable placeholder="请选择图书类型" style="width: 100%">
            <el-option
              v-for="item in typeList"
              :key="item.id"
              :label="item.typeName"
              :value="item.id">
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="作者" prop="author">
          <el-input v-model="form.author" placeholder="请输入作者"/>
        </el-form-item>
        <el-form-item label="库存" prop="bookInventory">
          <el-input v-model.number="form.bookInventory" placeholder="请输入库存"/>
        </el-form-item>
        <el-form-item label="出版社" prop="press">
          <el-input v-model="form.press" placeholder="请输入出版社"/>
        </el-form-item>
        <el-form-item label="租金/日" prop="press">
          <el-input v-model="form.rent" placeholder="请输入租金">
            <template slot="append">元</template>
          </el-input>
        </el-form-item>
        <el-form-item label="下架状态" prop="unshelve">
          <el-select v-model="form.unshelve" placeholder="下架状态" clearable style="width: 100%">
            <el-option
              v-for="dict in dict.type.take_down_state"
              :key="dict.value"
              :label="dict.label"
              :value="dict.value"
            />
          </el-select>
        </el-form-item>

      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>

    <el-dialog :title="upload.title" :visible.sync="upload.open" width="400px" append-to-body>
      <el-upload
        ref="upload"
        :limit="1"
        accept=".xlsx, .xls"
        :headers="upload.headers"
        :action="upload.url + '?updateSupport=' + upload.updateSupport"
        :disabled="upload.isUploading"
        :on-progress="handleFileUploadProgress"
        :on-success="handleFileSuccess"
        :auto-upload="false"
        drag
      >
        <i class="el-icon-upload"></i>
        <div class="el-upload__text">将文件拖到此处，或<em>点击上传</em></div>
        <div class="el-upload__tip text-center" slot="tip">
          <div class="el-upload__tip" slot="tip">
            <el-checkbox v-model="upload.updateSupport" /> 是否更新已经存在的数据
          </div>
          <span>仅允许导入xls、xlsx格式文件。</span>
          <el-link type="primary" :underline="false" style="font-size:12px;vertical-align: baseline;" @click="importTemplate">下载模板</el-link>
        </div>
      </el-upload>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitFileForm">确 定</el-button>
        <el-button @click="upload.open = false">取 消</el-button>
      </div>
    </el-dialog>

  </div>
</template>

<script>
  import { listInfo, getInfo, delInfo, addInfo, updateInfo } from '@/api/book/info'
  import { listName } from '@/api/book/type'
  import { getToken } from "@/utils/auth";

  export default {
    dicts: ['take_down_state'],
    name: 'Info',
    data() {
      var checkNum = (rule, value, callback) => {
        setTimeout (() => {
          if ( !Number.isInteger (value) ) {
            callback (new Error ('请输入数字值'))
          } else {
            if ( value < 0 ) {
              callback (new Error ('必须是正数'))
            } else {
              callback ()
            }
          }
        }, 1000)
      }
      return {
        // 遮罩层
        loading: true,
        // 选中数组
        ids: [],
        // 非单个禁用
        single: true,
        // 非多个禁用
        multiple: true,
        // 显示搜索条件
        showSearch: true,
        // 总条数
        total: 0,
        // 图书信息表格数据
        infoList: [],
        // 弹出层标题
        title: '',
        // 是否显示弹出层
        open: false,
        // 查询参数
        queryParams: {
          pageNum: 1,
          pageSize: 10,
          bookName: null,
          bookType: null,
          bookInventory: null,
          author: null,
          press: null,
          unshelve: null,
          createUser: null,
          updateUser: null
        },
        // 表单参数
        form: {
          unshelve: '0'
        },
        // 表单校验
        rules: {
          bookName: [
            { required: true, message: '图书名称不能为空', trigger: 'blur' }
          ],
          bookType: [
            { required: true, message: '图书类型不能为空', trigger: 'change' }
          ],
          author: [
            { required: true, message: '作者不能为空', trigger: 'blur' }
          ],
          bookInventory: [
            { required: true, trigger: 'blur', message: '库存不能为空' },
            { validator: checkNum, trigger: 'blur' }
          ],
          press: [
            { required: true, message: '出版社不能为空', trigger: 'change' }
          ],
          unshelve: [
            { required: true, message: '下架状态不能为空', trigger: 'change' }
          ]
        },
        typeList: [],
        queryType: {
          typeName: null,
          description: null,
          createUser: null,
          updateUser: null
        },
        // 用户导入参数
        upload: {
          // 是否显示弹出层（用户导入）
          open: false,
          // 弹出层标题（用户导入）
          title: "",
          // 是否禁用上传
          isUploading: false,
          // 是否更新已经存在的用户数据
          updateSupport: 0,
          // 设置上传的请求头部
          headers: { Authorization: "Bearer " + getToken() },
          // 上传的地址
          url: process.env.VUE_APP_BASE_API + "/book/info/importData"
        },
      }
    },
    created() {
      this.getList ()
    },
    methods: {
      /** 查询图书信息列表 */
      getList() {
        this.loading = true
        listInfo (this.queryParams).then (response => {
          this.infoList = response.rows
          this.total = response.total
          this.loading = false
        })
      },
      // 取消按钮
      cancel() {
        this.open = false
        this.reset ()
      },
      // 表单重置
      reset() {
        this.form = {
          id: null,
          bookName: null,
          bookType: null,
          bookInventory: null,
          author: null,
          delFlag: null,
          createTime: null,
          press: null,
          unshelve: '0',
          createUser: null,
          updateUser: null,
          updateTime: null
        }
        this.resetForm ('form')
      },
      /** 搜索按钮操作 */
      handleQuery() {
        this.queryParams.pageNum = 1
        this.getList ()
      },
      /** 重置按钮操作 */
      resetQuery() {
        this.resetForm ('queryForm')
        this.handleQuery ()
      },
      // 多选框选中数据
      handleSelectionChange(selection) {
        this.ids = selection.map (item => item.id)
        this.single = selection.length !== 1
        this.multiple = !selection.length
      },
      /** 新增按钮操作 */
      handleAdd() {
        this.reset ()
        this.ListBookType ()
        this.open = true
        this.title = '添加图书信息'
      },
      /** 修改按钮操作 */
      handleUpdate(row) {
        this.reset ()
        const id = row.id || this.ids
        getInfo (id).then (response => {
          this.form = response.data
          this.open = true
          this.title = '修改图书信息'
        })
      },
      /** 提交按钮 */
      submitForm() {
        this.$refs[ 'form' ].validate (valid => {
          if ( valid ) {
            if ( this.form.id != null ) {
              updateInfo (this.form).then (response => {
                this.$modal.msgSuccess ('修改成功')
                this.open = false
                this.getList ()
              })
            } else {
              addInfo (this.form).then (response => {
                this.$modal.msgSuccess ('新增成功')
                this.open = false
                this.getList ()
              })
            }
          }
        })
      },
      /** 删除按钮操作 */
      handleDelete(row) {
        const ids = row.id || this.ids
        this.$modal.confirm ('是否确认删除图书信息编号为"' + ids + '"的数据项？').then (function() {
          return delInfo (ids)
        }).then (() => {
          this.getList ()
          this.$modal.msgSuccess ('删除成功')
        }).catch (() => {
        })
      },
      /** 导出按钮操作 */
      handleExport() {
        this.download ('book/info/export', {
          ... this.queryParams
        }, `info_${new Date ().getTime ()}.xlsx`)
      },
      // 获取图书类型信息
      ListBookType() {
        listName (this.queryType).then (response => {
          this.typeList = response.list
        })
      },
      handleDown(rowData) {
        this.$modal.confirm ('是否确认下架图书？').then (function() {
          rowData.unshelve = '1'
          return updateInfo (rowData)
        }).then (() => {
          this.getList ()
          this.$modal.msgSuccess ('下架成功')
        }).catch (() => {
        })

      },
      /** 导入按钮操作 */
      handleImport() {
        this.upload.title = "用户导入";
        this.upload.open = true;
      },
      // 文件上传中处理
      handleFileUploadProgress(event, file, fileList) {
        this.upload.isUploading = true;
      },
      // 文件上传成功处理
      handleFileSuccess(response, file, fileList) {
        this.upload.open = false;
        this.upload.isUploading = false;
        this.$refs.upload.clearFiles();
        this.$alert("<div style='overflow: auto;overflow-x: hidden;max-height: 70vh;padding: 10px 20px 0;'>" + response.msg + "</div>", "导入结果", { dangerouslyUseHTMLString: true });
        this.getList();
      },
      // 提交上传文件
      submitFileForm() {
        this.$refs.upload.submit();
      },
      /** 下载模板操作 */
      importTemplate() {
        this.download('book/info/importTemplate', {
        }, `book_template_${new Date().getTime()}.xlsx`)
      },
    }
  }
</script>
